/************************************************************
 * Project Name         [Thinking_In_Java]
 * File Name            [OpenWindows.java]
 * Creation Date        [Jul-23-2014]
 * 
 * Copyright© ge.y.yang@gmail.com All Rights Reserved
 * 
 * Work hard, play harder, think big and keep fit
 ************************************************************/
package pkg_03_game.openwindow;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;

/**
 * 开窗户游戏: 当你点击游戏界面中的一个正方形按钮时, 它周围的正方形按钮的颜色就会发生变化, 当全部正方形按钮的颜色变为一色时, 你就胜利了
 * 
 * @author 不落的太阳(Sean Yang)
 * @version 1.0
 * @since JDK 6
 * 
 */
public class OpenWindows {

	public static void main(String[] args) {
		JFrame frame = new JFrame("开窗户游戏");
		frame.getContentPane().add(new MainPanel());
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.pack();
		frame.setVisible(true);
	}
}

/**
 * 主面板
 * 
 * @author 不落的太阳(Sean Yang)
 * @version 1.0
 * @since JDK 6
 * 
 */
class MainPanel extends JPanel {

	private static final long serialVersionUID = 2301091043356979642L;

	SquarePanel sp = new SquarePanel();
	ControlPanel cp = new ControlPanel(sp);

	public MainPanel() {
		setLayout(new BorderLayout());
		this.add(sp, "Center");
		this.add(cp, "South");
	}
}

/**
 * 方块的面板
 * 
 * @author 不落的太阳(Sean Yang)
 * @version 1.0
 * @since JDK 6
 * 
 */
class SquarePanel extends JPanel {

	private static final long serialVersionUID = -7872102914526772809L;

	// 包括25个窗户按钮
	JButton[] winbutton = new JButton[25];
	Color color;

	public SquarePanel() {
		// 面板采用网格布局管理器
		setLayout(new GridLayout(5, 5));
		for (int i = 0; i < 25; i++) {
			winbutton[i] = new JButton();
			winbutton[i].setActionCommand(String.valueOf(i));
			// 获得默认颜色
			color = winbutton[i].getBackground();
			winbutton[i].addActionListener(new OpenWindowListener());
			this.add(winbutton[i]);
		}
		// 面板大小值为300*300
		setPreferredSize(new Dimension(300, 300));
	}

	/**
	 * 单击一个窗户按钮时引起开窗户事件
	 */
	class OpenWindowListener implements ActionListener {
		@Override
		public void actionPerformed(ActionEvent a) {
			// 获取被点击窗户的ID
			int x = Integer.parseInt(a.getActionCommand());
			// 设置被点击窗户被选
			select(x);
			// 判断是否胜利
			isWin();
		}

		// 当一个窗户被选中时进行的操作需要改变周围窗户的颜色
		private void select(int x) {
			if (x == 0) {
				changeColor(winbutton[x]);
				changeColor(winbutton[x + 1]);
				changeColor(winbutton[x + 5]);
			} else if (x > 0 && x < 4) {
				changeColor(winbutton[x]);
				changeColor(winbutton[x - 1]);
				changeColor(winbutton[x + 1]);
				changeColor(winbutton[x + 5]);
			} else if (x == 4) {
				changeColor(winbutton[x]);
				changeColor(winbutton[x - 1]);
				changeColor(winbutton[x + 5]);
			} else if (x == 20) {
				changeColor(winbutton[x]);
				changeColor(winbutton[x - 5]);
				changeColor(winbutton[x + 1]);
			} else if (x == 24) {
				changeColor(winbutton[x]);
				changeColor(winbutton[x - 5]);
				changeColor(winbutton[x - 1]);
			} else if (x > 20 && x < 24) {
				changeColor(winbutton[x]);
				changeColor(winbutton[x - 5]);
				changeColor(winbutton[x - 1]);
				changeColor(winbutton[x + 1]);
			} else if (x % 5 == 0) {
				changeColor(winbutton[x]);
				changeColor(winbutton[x - 5]);
				changeColor(winbutton[x + 1]);
				changeColor(winbutton[x + 5]);
			} else if (x % 5 == 4) {
				changeColor(winbutton[x]);
				changeColor(winbutton[x - 5]);
				changeColor(winbutton[x - 1]);
				changeColor(winbutton[x + 5]);
			} else {
				changeColor(winbutton[x]);
				changeColor(winbutton[x - 5]);
				changeColor(winbutton[x - 1]);
				changeColor(winbutton[x + 1]);
				changeColor(winbutton[x + 5]);
			}
		}

		// 改变周围颜色函数
		private void changeColor(JButton winbutton) {
			// 如果窗户的颜色是初始颜色, 则变成白色
			if (winbutton.getBackground() == color) {
				winbutton.setBackground(Color.white);
			} else {
				// 如果窗户的颜色不是初始颜色, 则变成初始颜色
				winbutton.setBackground(color);
			}
		}

		// 判断是否胜出
		private void isWin() {
			int a = 1;
			// 当25个窗户都变成白色时, 获胜
			for (int i = 0; i < 25; i++) {
				if (winbutton[i].getBackground() == Color.white) {
					a++;
				}
			}
			if (a > 25) {
				JOptionPane.showMessageDialog(null, "恭喜过关");
			}
		}
	}
}

/**
 * 控制面板
 * 
 * @author 不落的太阳(Sean Yang)
 * @version 1.0
 * @since JDK 6
 * 
 */
class ControlPanel extends JPanel {

	private static final long serialVersionUID = -6791120265997190417L;

	JLabel label = new JLabel("开窗户游戏");
	// 游戏重新开始按钮
	JButton restart = new JButton("重置");
	SquarePanel sp;

	/**
	 * 构造函数, 参数为待控制的窗户面板
	 */
	public ControlPanel(SquarePanel sp) {
		this.sp = sp;
		restart.addActionListener(new Reset());
		this.add(label);
		this.add(restart);
	}

	/**
	 * 重设窗户面板, 将所有窗户变成初始颜色
	 */
	class Reset implements ActionListener {
		@Override
		public void actionPerformed(ActionEvent a) {
			for (int i = 0; i < 25; i++) {
				sp.winbutton[i].setBackground(sp.color);
			}
		}
	}
}
